Puerto Rican Screech Owl

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iPuerto Rican Screech Owl
Conservation status
Least Concern (LC)[1]
Scientific classification
Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Aves Order: Strigiformes Family: Strigidae Genus: Megascops Species: M. nudipes
Binomial name
Megascops nudipes Daudin, 1800
Subspecies
M. n. nudipes   LC M. n. newtoni   Extinct

The Puerto Rican Screech Owl (Megascops nudipes) or Múcaro (Spanish) is a nocturnal endemic owl of the archipelago of Puerto Rico belonging to the Megascops genus of the Strigidae family. The subspecies, M. n . newtoni, which is endemic to the Virgin Islands is referred to as the Cuckoo Bird.

Contents 1 Taxonomy 2 Description 3 See also 4 Footnotes 5 References

[edit] Taxonomy

The nominate form, M. n. nudipes, was originally described in 1800 by French ornithologist François Marie Daudin in Traite elementaire et complet d'Ornithologie, ou Histoire Naturelle des Oiseaux as Otus nudipes. The species name, nudipes, makes reference to its bare legs and toes which is unusual among Megascops sp.. The recognized subspecies, M. n. newtoni, was described in 1860 by Lawrence in the Annals of the Lyceum of Natural History and is considered extinct.^[2] Furthermore, the existence of this subspecies has been questioned.^[3]

[edit] Description

The Puerto Rican Screech Owl is a small owl poseessing a brown upperside, a light-brown to white underside white brown lines and white eyebrows. Sexual dimorphism is minor in this species with females being slightly larger than males. On average, males weigh 137 g and females 143 g. The species measures from 23 to 25 cm in length.

The species is common in the island of Puerto Rico but is extirpated at the nearby islands of Vieques and Culebra. As with the majority of birds in Puerto Rico it is believed to have been more abundant before the clearing of forests for agricultural development in the early 20th century. It inhabits forests with large hollowed trees such as the Caribbean National Forest.

The breeding season spans from April to June.^[4] It nests in hollowed trunks and 1 or 2 eggs are deposited in each nest.

The main diet of the species consists of large insects and is complemented with small birds, geckos and small rodents.

The species calls throughout the year while hidden in thick foliage, typically at dawn. The species makes a loud coo-coo call which is the reason for its common name in the Virgin Islands.

[edit] See also

• List of endemic fauna of Puerto Rico
• List of Puerto Rican birds

[edit] Footnotes

1. ^ BirdLife International (2004). Megascops nudipes. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 11 May 2006. Database entry includes justification for why this species is of least concern
2. ^ A 1995 survey in the Virgin Islands did not find any individuals.
3. ^ Biaggi, V. (1970). Editorial Universitaria, Universidad de Puerto Rico: Las Aves de Puerto Rico. Barcelona, Spain: Manuel Pareja Publ.. (Spanish)
4. ^ The Owl Pages: Puerto Rican Screech Owl - Megascops nudipes. Retrieved on May 20, 2006.

[edit] References

• Lewis, Deane, P.. Puerto Rican Screech Owl - Megascops nudipes. The Owl Pages. Retrieved on April 28, 2006.
• Oberle, Mark (2003). Las aves de Puerto Rico en fotografías. Editorial Humanitas. ISBN 0-9650104-2-2. (Spanish)